Drug-drug interactions of plant alkaloids derived from herbal medicines on the phase II UGT enzymes: an introductory review.

Herbal medicines are widely used as alternative or complementary therapies to treat and prevent chronic diseases. However, these can lead to drug-drug interactions (DDIs) that affect the glucuronidation reaction of UDP glucuronosyltransferases (UGTs), which convert drugs into metabolites. Plant extracts derived from medicinal herbs contain a diverse array of compounds categorized into different functional groups.

Probing the anti-Aβ42 aggregation and protective effects of prenylated xanthone against Aβ42-induced toxicity in transgenic Caenorhabditis elegans model.

Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by the accumulation of amyloid-β (Aβ) protein aggregates, leading to synaptic dysfunction and neuronal cell death. In this study, we used a comprehensive approach encompassing in vitro assays, computational analyses, and an in vivo Caenorhabditis elegans model to evaluate the inhibitory effects of various xanthones, focusing on Garcinone D (GD), on Aβ42 oligomer formation. Dot blot analysis revealed concentration-dependent responses among xanthones, with GD consistently inhibiting Aβ42 oligomer formation at low concentrations (0.

An insight into viscosity and conductivity in the formulation of co-axial electrospun leaf extract.

This research aimed to investigate the application of the coaxial electrospun method for the production of natural extracts (papaya leaf extract) fibre films. This was achieved through utilising different polymers and with a focus on the conductivity and the viscosity of polymer solutions as critical parameters to generate successful fibres. Electrospinning is a promising trending manufacturing method for incorporating thermolabile herbal extracts using coaxial electrospun features.

Effects of clitorienolactones from Clitoria ternatea root on calcium channel mediating hippocampal long-term potentiation in rats induced chronic cerebral hypoperfusion.

Chronic cerebral hypoperfusion (CCH) is a common mechanism of acute brain injury due to impairment of blood flow to the brain. Moreover, a prolonged lack of oxygen supply may result in cerebral infarction or global ischemia, which subsequently causes long-term memory impairment. Research on using Clitoria ternatea root extract for treating long-term memory has been studied extensively.

Evaluation of toxicity profile of kratom (Mitragyna speciosa Korth) decoction in rats.

Mitragyna speciosa Korth also known as kratom, is an herbal drug preparation for its therapeutic properties and opioid-replacement therapy. Kratom is consumed in a brewed decoction form in Malaysia and to date, no studies have characterized its chemical and toxicity profile. Thus, this study aims to evaluate kratom decoction's safety and toxicity profile after 28 days of treatment.

Bio-enhanced fraction from Clitoria ternatea root extract ameliorates cognitive functions and in vivo hippocampal neuroplasticity in chronic cerebral hypoperfusion rat model.

Research employing a bio-enhanced fraction of Clitoria ternatea (CT) to treat cognitive decline in the animal model has not yet been found. This study aimed to determine the neuroprotective effect of CT root bioactive fraction (CTRF) in chronic cerebral hypoperfusion (CCH) rat model. CTRF and its major compound, clitorienolactones A (CLA), were obtained using column chromatography.

Microneedles for Efficient and Precise Drug Delivery in Cancer Therapy.

Cancer is the leading cause of death, acting as a global burden, severely impacting the patients' quality of life and affecting the world economy despite the expansion of cumulative advances in oncology. The current conventional therapies for cancer which involve long treatment duration and systemic exposure of drugs leads to premature degradation of drugs, a massive amount of pain, side effects, as well as the recurrence of the condition. There is also an urgent demand for personalized and precision-based medicine, especially after the recent pandemic, to avoid future delays in diagnosis or treatments for cancer patients as they are very essential in reducing the global mortality rate.

Natural Corynanthe-Type Cholinesterase Inhibitors from Malaysian Korth.: Isolation, Characterization, In Vitro and In Silico Studies.

The genus is notable for its therapeutic potential in treating age-related dementia, such as Alzheimer's disease. A phytochemical study of the leaves of Malaysian Korth., afforded an undescribed natural corynanthe-type oxindole alkaloid, isovillocarine D () together with two known indole alkaloids, villocarine A () and geissoschizine methyl ether (), and their structural identification was performed with extensive mono- and bidimensional NMR and MS spectroscopic methods.

Quassinoids from Eurycoma longifolia Jack roots and their potential inhibitory activity against human benign prostatic hyperplasia cells (BPH-1) and testosterone-induced BPH rat model.

Benign prostate hyperplasia (BPH) is an enlargement of the prostate gland, because of hormonal changes in aging males which contribute significantly to excessive proliferation over apoptosis of prostatic cells. The anti-proliferative and induced apoptotic activities of Eurycoma longifolia quassinoids on cancer cell lines could be promising therapeutic targets on BPH. Hitherto, no report of the quassinoids against BPH problem was available.

leaves prevent dyslipidemia and oxidative stress in a rat model of poloxamer-407-induced acute hyperlipidemia.

The star fruit [ L (Oxalidaceae)] is traditionally used in the treatment of many ailments in many countries. It possesses several pharmacological activities, including antioxidant and anti-inflammatory effects. However, it contains the neurotoxic caramboxin and its high content of oxalic acid limits its consumption by individuals with compromised kidney function.

(Blume) Miq Alleviates Non-Alcoholic Fatty Liver Disease via Antioxidant Activities in C57BL/6 Obese Mice and Palmitic-Oleic Acid-Induced Steatosis in HepG2 Cells.

Non-alcoholic fatty liver disease (NAFLD) is the most prevalent form of liver disease. (Blume) Miq, a traditional plant in South Asia, has previously been shown to attenuate obesity and hyperglycaemic conditions. Eight weeks of feeding C57BL/6 mice with the standardized extract (400 mg/kg) inhibited the progression of NAFLD.

Analgesic effects of main indole alkaloid of kratom, mitragynine in acute pain animal model.

Mitragynine exerts its analgesic effect mainly via opioid receptors activation. Additionally, the effect may be mediated via mitragynine's anti-inflammatory property and non-opioid receptor pain pathways, namely through the TRPV1 receptor. No studies identify hitherto, hence, the current study aimed to investigate the mitragynine's analgesic effect via the anti-inflammatory property, non-opioid receptor (TRPV1) and the effective dose (ED) to alleviate pain.

Mechanism of action of against non-alcoholic fatty liver disease: Insights from systems pharmacology and molecular docking approaches.

Unlabelled: Non-alcoholic fatty liver disease (NAFLD) is one of the most common complications of a metabolic syndrome caused by excessive accumulation of fat in the liver. also known as is a medicinal plant with possible potential beneficial effects on various metabolic disorders. This study aims to investigate the inhibitory effects of on hepatic fat accumulation and to further use the computational systems pharmacology approach to identify the pharmacokinetic properties of the bioactive compounds of and to predict their molecular mechanisms against NAFLD.

Development and Characterisation of a Topical Methyl Salicylate Patch: Effect of Solvents on Adhesion and Skin Permeation.

The advent of skin patch formulation design and technology has enabled the commercialisation of methyl salicylate (MS) as a topical patch. However, the most fundamental aspect of skin permeation is unknown at present. The study aims to investigate the effect of solvent choice on the skin permeation of MS in a neat solvent system and patch formulation with an emphasis on patch adhesion.

Dosage Forms and Advances in Nanoparticulate Delivery Systems: An Overview.

is a well-known Asian medicinal plant with a major phytoconstituent of diterpene lactones, such as andrographolide, 14-deoxyandrographolide, and neoandrographolide. A World Health Organization (WHO) monograph on selected medicinal plants showed that extracts and its major diterpene lactones have promising anti-inflammatory, antidiabetic, antimalarial, anticancer, antifungal, antibacterial, antioxidant, and hypoglycemic activities. However, these active phytochemicals have poor water solubility and bioavailability when delivered in a conventional dosage form.

Acute and sub-chronic toxicological evaluation of Averrhoa carambola leaves in Sprague Dawley rats.

Averrhoa carambola is a species of tree native to tropical Southeast Asia. It possesses antioxidant and anti-hyperlipidemia effects and has traditionally been used to treat a variety of ailments. However, the presence of oxalic acid in its fruits might restrict its consumption by individuals suffering from kidney disease, and caramboxin can cause neurotoxicity.

The role of protein kinases as key drivers of metabolic dysfunction-associated fatty liver disease progression: New insights and future directions.

Metabolic dysfunction-associated fatty liver disease (MAFLD), proposed in 2020 is a novel term for non-alcoholic fatty liver disease (NAFLD) which was coined for the first time in 1980. It is a leading cause of the most chronic liver disease and hepatic failure all over the world, and unfortunately, with no licensed drugs for treatment yet. The progress of the disease is driven by the triggered inflammatory process, oxidative stress, and insulin resistance in many pathways, starting with simple hepatic steatosis to non-alcoholic steatohepatitis, fibrosis, cirrhosis, and liver cancer.

A Narrative Review on the Phytochemistry, Pharmacology and Therapeutic Potentials of (Burm. f.) Lindau Leaves as an Alternative Source of Future Medicine.

The application of natural products and supplements has expanded tremendously over the past few decades. (), which is affiliated to the Acanthaceae family, has recently caught the interest of researchers from the countries of subtropical Asia due to its medicinal uses in alternative treatment for skin infection conditions due to insect bites, microorganism infections and cancer, as well as for health well-being. A number of bioactive compounds from this plant's extract, namely phenolic compounds, sulphur containing compounds, sulphur containing glycosides compounds, terpens-tripenoids, terpens-phytosterols and chlorophyll-related compounds possess high antioxidant activities.

The effect of mitragynine on extracellular activity of brain dopamine and its metabolites.

Kratom, derived from the plant Mitragyna speciosa (M. speciosa) Korth is a traditional psychoactive preparation widely used in Southeast Asia and increasingly in the rest of the world. Use and abuse of Kratom preparations can be attributed to mitragynine (MIT), the main psychoactive compound isolated from its leaves.

Conjugated β-Cyclodextrin Enhances the Affinity of Folic Acid towards FRα: Molecular Dynamics Study.

Drug targeting is a progressive area of research with folate receptor alpha (FRα) receiving significant attention as a biological marker in cancer drug delivery. The binding affinity of folic acid (FA) to the FRα active site provides a basis for recognition of FRα. In this study, FA was conjugated to beta-cyclodextrin (βCD) and subjected to in silico analysis (molecular docking and molecular dynamics (MD) simulation (100 ns)) to investigate the affinity and stability for the conjugated system compared to unconjugated and apo systems (ligand free).

Comparative Toxicity Assessment of Kratom Decoction, Mitragynine and Speciociliatine Versus Morphine on Zebrafish () Embryos.

Kratom ( Korth), a popular opioid-like plant holds its therapeutic potential in pain management and opioid dependence. However, there are growing concerns about the safety or potential toxicity risk of kratom after prolonged use. The study aimed to assess the possible toxic effects of kratom decoction and its major alkaloids, mitragynine, and speciociliatine in comparison to morphine in an embryonic zebrafish model.

Addressing the standardisation of internal standards and preservative used in human bio fluids for NMR analysis: a method optimization.

Objectives: A database comprising multivariate data in developing a model from nuclear magnetic resonance (NMR) analysis using human bio fluids are necessary to have reproducibility and reliability of the data. To achieve reproducibility of the data, standardised experiments, including internal standard and preservative used should be attained, especially for samples such as human bio fluids to hinder the variation among samples. The aim of the study was to optimise in commonly used human bio fluids (serum and urine) for a suitable internal standard and preservative used in extended storage samples for NMR analysis.

Accelerated Solvent Extractions (ASE) of Korth. (Kratom) Leaves: Evaluation of Its Cytotoxicity and Antinociceptive Activity.

Korth (kratom) is known for its psychoactive and analgesic properties. Mitragynine is the primary constituent present in kratom leaves. This study highlights the utilisation of the green accelerated solvent extraction technique to produce a better, non-toxic and antinociceptive active botanical extract of kratom.

The potentiation of beta-lactam and anti-bacterial activities of lipophilic constituents from leaves against methicillin-resistant .

Objectives: , from the family of Calophyllaceae, is traditionally used for the treatment of piles, fever and renal disorders. The present study was aimed to examine the antibacterial compounds from the leaves of and their -lactam antibiotic potentiate activities against and methicillin-resistant (MRSA).

Methods: Stigmasterol () and -caryophyllene oxide () were isolated from the -hexane fraction of the leaves of using a bioassay-guided fractionation approach.